As of my last knowledge update in September 2021, building regulations in Ireland are subject to change and may vary depending on the specific location and local authorities. Therefore, it’s essential to check with your local authority or a qualified professional for the most up-to-date information and guidance. However, I can provide you with some general guidelines and considerations for attic conversions in Ireland:

1. Planning Permission: In some cases, an attic conversion may require planning permission. However, under certain conditions, you may be able to carry out a “permitted development” without planning permission. These conditions include complying with specific height restrictions, ensuring the additional space does not exceed a certain percentage of the original house’s volume, and not facing a public road. It is crucial to confirm with your local planning authority if planning permission is required for your specific conversion.

2. Building Regulations: Regardless of planning permission requirements, attic conversions must comply with the Building Control Regulations. These regulations cover aspects such as structural integrity, fire safety, insulation, ventilation, and energy efficiency.

3. Fire Safety: Attic conversions need to have appropriate fire safety measures, including fire-resistant materials, escape routes, and smoke detectors. The escape routes must comply with specific dimensions and accessibility requirements.

4. Structural Integrity: The existing structure of the roof and floor must be assessed to determine if it can support the additional load of the conversion. If necessary, structural modifications or reinforcements may be required.

5. Insulation: Adequate insulation is crucial to meeting energy efficiency standards. The walls, roof, and floor should have sufficient insulation to reduce heat loss and comply with building regulations.

6. Ventilation: Proper ventilation is essential to prevent moisture buildup and maintain good indoor air quality. Ventilation requirements should be met according to the building regulations.

7. Access: A safe and suitable access route to the converted attic must be provided, typically in the form of a staircase.

8. Plumbing and Electrical Work: If the attic conversion includes the addition of bathrooms, plumbing work, or electrical installations, they must be carried out by qualified professionals and comply with relevant regulations.

9. Party Walls: If the attic adjoins a neighboring property, there may be specific requirements regarding party walls and agreements with the adjoining property owner.

10. Disability Access: Depending on the use of the converted space, there may be considerations for disability access and provisions for people with disabilities.